Convert centimeters to inches (cm to in) and in to cm (inch to centimeter) Centimetre (American spelling: centimeter, abbreviation and symbol: cm) is a unit of length in the metric system. One cm is equal to one hundredth of a metre (amer. spelling: meter), which is the current SI base unit of length.
Painting Lesson-Color Perspective. Understanding the principles of color perspective; painting a field of strokes with the idea of warm colors coming forward and cool colors receding. Warm colors like red and yellow are considered advancing colors. Cool colors such as blue and green are receding colors.
Color Theory Terms and Definitions. 1  Color-Element of art derived from reflected light. 2  We see color because light waves. 3  are reflected from objects to your eyes. 4  Color wheel-color spectrum bent into a circle. 5  Primary colors-The most basic colors on the color wheel, red, yellow and blue.